Problem 15

Explanation

Let's analyze each option based on the data in the chart.

Answer Choice Analysis

1. Product Noodle A never experienced a price decrease

   • 2017 to 2018: $3500 \to 2500$ (Decrease)
   • 2019 to 2020: $3350 \to 3000$ (Decrease)
   • This statement is false because Noodle A experienced price decreases twice.

2. The price increase of Noodle B in 2019—2020 was higher than the price increase of Noodle B from 2017—2019

   • Increase 2019—2020: $4500 - 4000 = 500$
   • Change 2017—2019: $4000 - 4500 = -500$ (Decrease)
   • Comparing an increase with a decrease implies both increased, which is not true. Since 2017—2019 saw a decrease, this statement is incorrect.

3. There is a Noodle product that experienced only one price decrease

   • Noodle C experienced price increases in 2017—2018 ($2250 \to 2500$) and 2018—2019 ($2500 \to 2800$).
   • However, in 2019—2020, the price decreased ($2800 \to 2650$).
   • Thus, Noodle C experienced only one price decrease, making this statement true.

4. Almost all Instant Noodle products frequently experience price increases

   • There are 9 price transitions in total (3 products $\times$ 3 periods).
   • Increases occurred 4 times: Noodle A (1x), Noodle B (1x), Noodle C (2x).
   • Decreases occurred 5 times: Noodle A (2x), Noodle B (2x), Noodle C (1x).
   • The frequency of decreases is higher than increases, so this statement is false.

5. The price of Noodle A did not experience a drastic decrease

   • From 2017—2018, the price of Noodle A dropped from $3500$ to $2500$ (a drop of $1000$ or approximately $28.6\%$).
   • This decrease is quite significant, so this statement is likely false.

Conclusion

The correct conclusion based on the data is that there is a Noodle product that experienced only one price decrease, which is Noodle C.